Stabilization of three-dimensional charge order through interplanar orbital hybridization in PrxY1−xBa2Cu3O6+δ

Alejandro Ruiz, Brandon Gunn, Yi Lu, Kalyan Sasmal, Camilla M. Moir, Rourav Basak, Hai Huang, Jun-Sik Lee, Fanny Rodolakis, Timothy J. Boyle, Morgan Walker, Yu He, Santiago Blanco-Canosa, Eduardo H. Silva Neto, M. Brian Maple and Alex Frano ()
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Alejandro Ruiz: University of California
Brandon Gunn: University of California
Yi Lu: Nanjing University
Kalyan Sasmal: University of California
Camilla M. Moir: University of California
Rourav Basak: University of California
Hai Huang: SLAC National Accelerator Laboratory
Jun-Sik Lee: SLAC National Accelerator Laboratory
Fanny Rodolakis: Argonne National Laboratory
Timothy J. Boyle: University of California
Morgan Walker: University of California
Yu He: Yale University
Santiago Blanco-Canosa: Donostia International Physics Center, DIPC
Eduardo H. Silva Neto: University of California
M. Brian Maple: University of California
Alex Frano: University of California

Nature Communications, 2022, vol. 13, issue 1, 1-7

Abstract: Abstract The shape of 3d-orbitals often governs the electronic and magnetic properties of correlated transition metal oxides. In the superconducting cuprates, the planar confinement of the $${d}_{{x}^{2}-{y}^{2}}$$ d x 2 − y 2 orbital dictates the two-dimensional nature of the unconventional superconductivity and a competing charge order. Achieving orbital-specific control of the electronic structure to allow coupling pathways across adjacent planes would enable direct assessment of the role of dimensionality in the intertwined orders. Using Cu L3 and Pr M5 resonant x-ray scattering and first-principles calculations, we report a highly correlated three-dimensional charge order in Pr-substituted YBa2Cu3O7, where the Pr f-electrons create a direct orbital bridge between CuO2 planes. With this we demonstrate that interplanar orbital engineering can be used to surgically control electronic phases in correlated oxides and other layered materials.

Date: 2022
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DOI: 10.1038/s41467-022-33607-z

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